Quote:
Originally Posted by Need_for_speed
Am I on target with my analysis that overheating is the primary issue, or should I still consider a deep sump or accusump?
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From my data collected at hpde events, as oil temp goes up, so do pressure dips caused by g forces, and overall oil.pressure is lower as well.
On cooler days where the water temp stays pegged at 180, the oil gets to around 205-210, and pressure dips are greatly reduced. I see this at Roebling with lots of non full throttle sweepers.
A track like the firm, with lots of lower speed WOT and less cooling time, the oil heads up to 220-230, maybe getting close to 240. Pressure dips are worse.
New for the last time, I bypassed my failed rad fan ballast resistor on the left side so the fan runs on high anytime it is on, I set the AC on 75 and ran it at low, which ran the driver side fan at high and the other on low. This helped keep the car cooler, I would flip.it on partway through the session and could watch the temp come down. If I flipped it on a cool down lap, temps came down pretty fast.
I am.going to fix the ballast resistor so it doesn't run on hi all the time, and wire a switch to jumper the hi speed relays so I can run them.both on demand. It will be interesting if this works to keep the oil cooler.
Before messing with the oil cooling side I am going to maximize the water side. Maybe there is a better rad fan I could put on?
Edit: I run the 2 QT LN deep sump, and spin on oil adapter, those are my only oiling mods.